57643145 has 8 divisors (see below), whose sum is σ = 79053504. Its totient is φ = 39526704.

The previous prime is 57643133. The next prime is 57643153. The reversal of 57643145 is 54134675.

57643145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57643145 - 2²⁰ = 56594569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1646947 = 57643145 / (5 + 7 + 6 + 4 + 3 + 1 + 4 + 5).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823439 + ... + 823508.

It is an arithmetic number, because the mean of its divisors is an integer number (9881688).

Almost surely, 2^57643145 is an apocalyptic number.

It is an amenable number.

57643145 is a deficient number, since it is larger than the sum of its proper divisors (21410359).

57643145 is a wasteful number, since it uses less digits than its factorization.

57643145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646959.

The product of its digits is 50400, while the sum is 35.

The square root of 57643145 is about 7592.3082787779. The cubic root of 57643145 is about 386.2921557938.

The spelling of 57643145 in words is "fifty-seven million, six hundred forty-three thousand, one hundred forty-five".